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Help with Brake MC

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https://www.britishcarforum.com/bcf...arch/true/Aarrgh_what_am_I_missing#Post458019

Ok here's how it goes.

before you do this, you have to take off the cap and steel rod - you do this (as I recall) by compressing the spring and the "washer" holding things in place unwinds -like a key ring - can't think of a clearer way to descrie how it is on.

then

1. remove the first circlip
2. drill out and remove the nylon washer
3. remove the rubber washer
4. remove the second circlip
5. Cover a piece of 2X4 with a rag and bang the Master Cylinder till the metal washer comes out
6. pull out the rest of the guts
7. clean clean clean - separate the two pistons as per instruction in Bentley et al, replace the rubbers and reassemble.
8. take the time to remove the two side fittings that lead to the actual brake lines - there is a spring and nylon fitting underneath that also needs to be cleaned.

I cannot begin to describe how filthy everything was. I was not prepared for the amount of c**p inside evrything - I would suggest that this is a must do job on a 30+ year old car. I also found that in addition to my parts washer, baby bottle brushes, pipe cleaners and dental metal picks are very helpful.

Thanks all for your help

Oh, and

9. If you just got your radiator back from the shop yesterday, put it in another roon, then when your socket flies off the breaker bar while undoing the side fittings, it won't fly through the air and leave a divot.

but it's almost back together - just polished the casing and clear coated so it's drying

JP
 
it should but I didn't know that till later - thanks for the reminder
 
It is amazing how my brakes were even working. The goop that was in mine was disgusting. Good list, wish I had it when I did mine a couple months ago.
 
Make sure you have the lips on the cups pointed in the correct direction when you install the new ones. It is worth taking a picture before you remove the old ones.
 
whitey72mg said:
Ok I have it all apart. How do you take apart the Guts so that I can replace the washers and rubbers? Thanks again
Click to expand...

not sure I understand the question - if you have everything removed - what remains?
 
There is a roll pin that retains the piston link, # 14 in Bentley, that needs to be drifted out to separate the primary and secondary pistons after you compress the spring. This is the detail for step 7 listed above.
 
How different is an earlier master I wonder? MKI. I'll be finding out soon I guess.
 
No pin or other devilish "magic" devices. Very straightforward compared to the dual circuit units.
 
Mark I MCs are a piece of cake by comparison! No circlips or any of that "modern" stuff!! Definitly designed on the KISS (Keep It Simple Stupid!) principal
grin.gif
! :thumbsup:
 
Cool. Another plus for the early ones. Sure hope this solves my clutch spin issues.....
 
jvandyke said:
Cool. Another plus for the early ones.
Click to expand...

till they fail :wall: dual systems were created for a purpose
 
Oh, foo.

What's so wrong with a bit of adrenalin now and then, JP?!?! :devilgrin:

:eeek:
 
"First I said it, then I did it" :lol:
 
I rebuilt my MC a few weeks ago but well, long story short, I'm doing it again. There's quite a bit more resistance on the brake side than the clutch side, so now I'm wondering why. So far I've just reassembled, poured some brake fluid in the reservoir and worked the pushrods by hand a bit. I honed it this time around.
 
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